97077247 has 2 divisors, whose sum is σ = 97077248. Its totient is φ = 97077246.

The previous prime is 97077221. The next prime is 97077269. The reversal of 97077247 is 74277079.

It is a strong prime.

It is an emirp because it is prime and its reverse (74277079) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97077247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97077347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48538623 + 48538624.

It is an arithmetic number, because the mean of its divisors is an integer number (48538624).

Almost surely, 2^97077247 is an apocalyptic number.

97077247 is a deficient number, since it is larger than the sum of its proper divisors (1).

97077247 is an equidigital number, since it uses as much as digits as its factorization.

97077247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172872, while the sum is 43.

The square root of 97077247 is about 9852.7786436112. The cubic root of 97077247 is about 459.5920248512.

The spelling of 97077247 in words is "ninety-seven million, seventy-seven thousand, two hundred forty-seven".